70331340 has 48 divisors (see below), whose sum is σ = 197342208. Its totient is φ = 18715584.

The previous prime is 70331333. The next prime is 70331341. The reversal of 70331340 is 4313307.

It is not an unprimeable number, because it can be changed into a prime (70331341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37669 + ... + 39491.

It is an arithmetic number, because the mean of its divisors is an integer number (4111296).

Almost surely, 2^70331340 is an apocalyptic number.

It is an amenable number.

70331340 is an abundant number, since it is smaller than the sum of its proper divisors (127010868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70331340 is a wasteful number, since it uses less digits than its factorization.

70331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 70331340 is about 8386.3782409333. The cubic root of 70331340 is about 412.7777670031. Note that the first 4 decimals are identical.

Adding to 70331340 its reverse (4313307), we get a palindrome (74644647).

The spelling of 70331340 in words is "seventy million, three hundred thirty-one thousand, three hundred forty".